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1/*
2 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 */
13
14#include <linux/delay.h>
15#include <linux/io.h>
16#include <linux/mailbox_client.h>
17#include <linux/module.h>
18#include <linux/of.h>
19#include <linux/phy/phy.h>
20#include <linux/platform_device.h>
21#include <linux/regulator/consumer.h>
22#include <linux/reset.h>
23#include <linux/slab.h>
24
25#include <soc/tegra/fuse.h>
26
27#include "xusb.h"
28
29#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? 15 : 0)
30#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f
31#define FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT 13
32#define FUSE_SKU_CALIB_HS_IREF_CAP_MASK 0x3
33#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT 11
34#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK 0x3
35#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7
36#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf
37
38#define XUSB_PADCTL_USB2_PORT_CAP 0x008
39#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(x) ((x) * 4)
40#define XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK 0x3
41#define XUSB_PADCTL_USB2_PORT_CAP_DISABLED 0x0
42#define XUSB_PADCTL_USB2_PORT_CAP_HOST 0x1
43#define XUSB_PADCTL_USB2_PORT_CAP_DEVICE 0x2
44#define XUSB_PADCTL_USB2_PORT_CAP_OTG 0x3
45
46#define XUSB_PADCTL_SS_PORT_MAP 0x014
47#define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 4) + 3))
48#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 4)
49#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 4))
50#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 4))
51#define XUSB_PADCTL_SS_PORT_MAP_PORT_MAP_MASK 0x7
52
53#define XUSB_PADCTL_ELPG_PROGRAM 0x01c
54#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26)
55#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25)
56#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24)
57#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(x) (1 << (18 + (x) * 4))
58#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(x) \
59 (1 << (17 + (x) * 4))
60#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(x) (1 << (16 + (x) * 4))
61
62#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040
63#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19)
64#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK (0xf << 12)
65#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST (1 << 1)
66
67#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2 0x044
68#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN (1 << 6)
69#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5)
70#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4)
71
72#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(x) (0x058 + (x) * 4)
73#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT 24
74#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK 0xff
75#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_VAL 0x24
76#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT 16
77#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK 0x3f
78#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT 8
79#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK 0x3f
80#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT 8
81#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK 0xffff
82#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_VAL 0xf070
83#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT 4
84#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK 0xf
85#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_VAL 0xf
86
87#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(x) (0x068 + (x) * 4)
88#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT 24
89#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK 0x1f
90#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT 16
91#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK 0x7f
92#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_VAL 0x002008ee
93
94#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(x) ((x) < 2 ? 0x078 + (x) * 4 : \
95 0x0f8 + (x) * 4)
96#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT 28
97#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK 0x3
98#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_VAL 0x1
99
100#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(x) ((x) < 2 ? 0x090 + (x) * 4 : \
101 0x11c + (x) * 4)
102#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN (1 << 8)
103
104#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(x) ((x) < 2 ? 0x098 + (x) * 4 : \
105 0x128 + (x) * 4)
106#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT 24
107#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK 0x3f
108#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK 0x1f
109#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK 0x7f
110#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT 16
111#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK 0xff
112#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z 0x21
113#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP 0x32
114#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP 0x33
115#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z 0x48
116#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z 0xa1
117
118#define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x0a0 + (x) * 4)
119#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 21)
120#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 20)
121#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 19)
122#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT 14
123#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK 0x3
124#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(x) ((x) ? 0x0 : 0x3)
125#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT 6
126#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK 0x3f
127#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL 0x0e
128#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0
129#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f
130
131#define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x0ac + (x) * 4)
132#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT 9
133#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK 0x3
134#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3
135#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0x7
136#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2)
137#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP (1 << 1)
138#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP (1 << 0)
139
140#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0b8
141#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 12)
142#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 2
143#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7
144#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x5
145#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0
146#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x3
147
148#define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x0c0 + (x) * 4)
149#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT 12
150#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK 0x7
151#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT 8
152#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK 0x7
153#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT 4
154#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK 0x7
155#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT 0
156#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK 0x7
157
158#define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x0c8 + (x) * 4)
159#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE (1 << 10)
160#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA (1 << 9)
161#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE (1 << 8)
162#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA (1 << 7)
163#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI (1 << 5)
164#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX (1 << 4)
165#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX (1 << 3)
166#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX (1 << 2)
167#define XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN (1 << 0)
168
169#define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x0d0 + (x) * 4)
170#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 4
171#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0x7
172#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0
173#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0x7
174
175#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x0e0
176#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK 0x1f
177
178#define XUSB_PADCTL_USB3_PAD_MUX 0x134
179#define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x)))
180#define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (6 + (x)))
181
182#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138
183#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27)
184#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24)
185#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT 20
186#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_MASK 0x3
187#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD (1 << 3)
188#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST (1 << 1)
189#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ (1 << 0)
190
191#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2 0x13c
192#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT 20
193#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_MASK 0xf
194#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT 16
195#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_MASK 0xf
196#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TCLKOUT_EN (1 << 12)
197#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TXCLKREF_SEL (1 << 4)
198#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT 0
199#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_MASK 0x7
200
201#define XUSB_PADCTL_IOPHY_PLL_S0_CTL3 0x140
202#define XUSB_PADCTL_IOPHY_PLL_S0_CTL3_RCAL_BYPASS (1 << 7)
203
204#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1 0x148
205#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1)
206#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0)
207
208#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 0x14c
209
210#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 0x158
211
212#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 0x15c
213
214struct tegra124_xusb_fuse_calibration {
215 u32 hs_curr_level[3];
216 u32 hs_iref_cap;
217 u32 hs_term_range_adj;
218 u32 hs_squelch_level;
219};
220
221struct tegra124_xusb_padctl {
222 struct tegra_xusb_padctl base;
223
224 struct tegra124_xusb_fuse_calibration fuse;
225};
226
227static inline struct tegra124_xusb_padctl *
228to_tegra124_xusb_padctl(struct tegra_xusb_padctl *padctl)
229{
230 return container_of(padctl, struct tegra124_xusb_padctl, base);
231}
232
233static int tegra124_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
234{
235 u32 value;
236
237 mutex_lock(&padctl->lock);
238
239 if (padctl->enable++ > 0)
240 goto out;
241
242 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
243 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
244 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
245
246 usleep_range(100, 200);
247
248 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
249 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
250 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
251
252 usleep_range(100, 200);
253
254 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
255 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
256 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
257
258out:
259 mutex_unlock(&padctl->lock);
260 return 0;
261}
262
263static int tegra124_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
264{
265 u32 value;
266
267 mutex_lock(&padctl->lock);
268
269 if (WARN_ON(padctl->enable == 0))
270 goto out;
271
272 if (--padctl->enable > 0)
273 goto out;
274
275 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
276 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
277 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
278
279 usleep_range(100, 200);
280
281 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
282 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
283 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
284
285 usleep_range(100, 200);
286
287 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
288 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
289 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
290
291out:
292 mutex_unlock(&padctl->lock);
293 return 0;
294}
295
296static int tegra124_usb3_save_context(struct tegra_xusb_padctl *padctl,
297 unsigned int index)
298{
299 struct tegra_xusb_usb3_port *port;
300 struct tegra_xusb_lane *lane;
301 u32 value, offset;
302
303 port = tegra_xusb_find_usb3_port(padctl, index);
304 if (!port)
305 return -ENODEV;
306
307 port->context_saved = true;
308 lane = port->base.lane;
309
310 if (lane->pad == padctl->pcie)
311 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(lane->index);
312 else
313 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6;
314
315 value = padctl_readl(padctl, offset);
316 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
317 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
318 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP <<
319 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
320 padctl_writel(padctl, value, offset);
321
322 value = padctl_readl(padctl, offset) >>
323 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
324 port->tap1 = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK;
325
326 value = padctl_readl(padctl, offset);
327 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
328 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
329 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP <<
330 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
331 padctl_writel(padctl, value, offset);
332
333 value = padctl_readl(padctl, offset) >>
334 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
335 port->amp = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK;
336
337 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
338 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
339 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
340 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
341 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
342 value |= (port->tap1 <<
343 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
344 (port->amp <<
345 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
346 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
347
348 value = padctl_readl(padctl, offset);
349 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
350 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
351 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z <<
352 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
353 padctl_writel(padctl, value, offset);
354
355 value = padctl_readl(padctl, offset);
356 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
357 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
358 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z <<
359 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
360 padctl_writel(padctl, value, offset);
361
362 value = padctl_readl(padctl, offset) >>
363 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
364 port->ctle_g = value &
365 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
366
367 value = padctl_readl(padctl, offset);
368 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
369 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
370 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z <<
371 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
372 padctl_writel(padctl, value, offset);
373
374 value = padctl_readl(padctl, offset) >>
375 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
376 port->ctle_z = value &
377 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
378
379 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
380 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
381 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
382 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
383 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
384 value |= (port->ctle_g <<
385 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
386 (port->ctle_z <<
387 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
388 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
389
390 return 0;
391}
392
393static int tegra124_hsic_set_idle(struct tegra_xusb_padctl *padctl,
394 unsigned int index, bool idle)
395{
396 u32 value;
397
398 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
399
400 if (idle)
401 value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
402 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
403 else
404 value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
405 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE);
406
407 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
408
409 return 0;
410}
411
412#define TEGRA124_LANE(_name, _offset, _shift, _mask, _type) \
413 { \
414 .name = _name, \
415 .offset = _offset, \
416 .shift = _shift, \
417 .mask = _mask, \
418 .num_funcs = ARRAY_SIZE(tegra124_##_type##_functions), \
419 .funcs = tegra124_##_type##_functions, \
420 }
421
422static const char * const tegra124_usb2_functions[] = {
423 "snps",
424 "xusb",
425 "uart",
426};
427
428static const struct tegra_xusb_lane_soc tegra124_usb2_lanes[] = {
429 TEGRA124_LANE("usb2-0", 0x004, 0, 0x3, usb2),
430 TEGRA124_LANE("usb2-1", 0x004, 2, 0x3, usb2),
431 TEGRA124_LANE("usb2-2", 0x004, 4, 0x3, usb2),
432};
433
434static struct tegra_xusb_lane *
435tegra124_usb2_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
436 unsigned int index)
437{
438 struct tegra_xusb_usb2_lane *usb2;
439 int err;
440
441 usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL);
442 if (!usb2)
443 return ERR_PTR(-ENOMEM);
444
445 INIT_LIST_HEAD(&usb2->base.list);
446 usb2->base.soc = &pad->soc->lanes[index];
447 usb2->base.index = index;
448 usb2->base.pad = pad;
449 usb2->base.np = np;
450
451 err = tegra_xusb_lane_parse_dt(&usb2->base, np);
452 if (err < 0) {
453 kfree(usb2);
454 return ERR_PTR(err);
455 }
456
457 return &usb2->base;
458}
459
460static void tegra124_usb2_lane_remove(struct tegra_xusb_lane *lane)
461{
462 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane);
463
464 kfree(usb2);
465}
466
467static const struct tegra_xusb_lane_ops tegra124_usb2_lane_ops = {
468 .probe = tegra124_usb2_lane_probe,
469 .remove = tegra124_usb2_lane_remove,
470};
471
472static int tegra124_usb2_phy_init(struct phy *phy)
473{
474 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
475
476 return tegra124_xusb_padctl_enable(lane->pad->padctl);
477}
478
479static int tegra124_usb2_phy_exit(struct phy *phy)
480{
481 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
482
483 return tegra124_xusb_padctl_disable(lane->pad->padctl);
484}
485
486static int tegra124_usb2_phy_power_on(struct phy *phy)
487{
488 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
489 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane);
490 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad);
491 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
492 struct tegra124_xusb_padctl *priv;
493 struct tegra_xusb_usb2_port *port;
494 unsigned int index = lane->index;
495 u32 value;
496 int err;
497
498 port = tegra_xusb_find_usb2_port(padctl, index);
499 if (!port) {
500 dev_err(&phy->dev, "no port found for USB2 lane %u\n", index);
501 return -ENODEV;
502 }
503
504 priv = to_tegra124_xusb_padctl(padctl);
505
506 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
507 value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK <<
508 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
509 (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK <<
510 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT));
511 value |= (priv->fuse.hs_squelch_level <<
512 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
513 (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL <<
514 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT);
515 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
516
517 value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP);
518 value &= ~(XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK <<
519 XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(index));
520 value |= XUSB_PADCTL_USB2_PORT_CAP_HOST <<
521 XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(index);
522 padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP);
523
524 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index));
525 value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK <<
526 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) |
527 (XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK <<
528 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT) |
529 (XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK <<
530 XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT) |
531 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD |
532 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 |
533 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI);
534 value |= (priv->fuse.hs_curr_level[index] +
535 usb2->hs_curr_level_offset) <<
536 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT;
537 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL <<
538 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT;
539 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(index) <<
540 XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT;
541 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index));
542
543 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
544 value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK <<
545 XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
546 (XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK <<
547 XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT) |
548 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR |
549 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP |
550 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP);
551 value |= (priv->fuse.hs_term_range_adj <<
552 XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
553 (priv->fuse.hs_iref_cap <<
554 XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT);
555 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
556
557 err = regulator_enable(port->supply);
558 if (err)
559 return err;
560
561 mutex_lock(&pad->lock);
562
563 if (pad->enable++ > 0)
564 goto out;
565
566 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
567 value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
568 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
569
570out:
571 mutex_unlock(&pad->lock);
572 return 0;
573}
574
575static int tegra124_usb2_phy_power_off(struct phy *phy)
576{
577 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
578 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad);
579 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
580 struct tegra_xusb_usb2_port *port;
581 u32 value;
582
583 port = tegra_xusb_find_usb2_port(padctl, lane->index);
584 if (!port) {
585 dev_err(&phy->dev, "no port found for USB2 lane %u\n",
586 lane->index);
587 return -ENODEV;
588 }
589
590 mutex_lock(&pad->lock);
591
592 if (WARN_ON(pad->enable == 0))
593 goto out;
594
595 if (--pad->enable > 0)
596 goto out;
597
598 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
599 value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
600 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
601
602out:
603 regulator_disable(port->supply);
604 mutex_unlock(&pad->lock);
605 return 0;
606}
607
608static const struct phy_ops tegra124_usb2_phy_ops = {
609 .init = tegra124_usb2_phy_init,
610 .exit = tegra124_usb2_phy_exit,
611 .power_on = tegra124_usb2_phy_power_on,
612 .power_off = tegra124_usb2_phy_power_off,
613 .owner = THIS_MODULE,
614};
615
616static struct tegra_xusb_pad *
617tegra124_usb2_pad_probe(struct tegra_xusb_padctl *padctl,
618 const struct tegra_xusb_pad_soc *soc,
619 struct device_node *np)
620{
621 struct tegra_xusb_usb2_pad *usb2;
622 struct tegra_xusb_pad *pad;
623 int err;
624
625 usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL);
626 if (!usb2)
627 return ERR_PTR(-ENOMEM);
628
629 mutex_init(&usb2->lock);
630
631 pad = &usb2->base;
632 pad->ops = &tegra124_usb2_lane_ops;
633 pad->soc = soc;
634
635 err = tegra_xusb_pad_init(pad, padctl, np);
636 if (err < 0) {
637 kfree(usb2);
638 goto out;
639 }
640
641 err = tegra_xusb_pad_register(pad, &tegra124_usb2_phy_ops);
642 if (err < 0)
643 goto unregister;
644
645 dev_set_drvdata(&pad->dev, pad);
646
647 return pad;
648
649unregister:
650 device_unregister(&pad->dev);
651out:
652 return ERR_PTR(err);
653}
654
655static void tegra124_usb2_pad_remove(struct tegra_xusb_pad *pad)
656{
657 struct tegra_xusb_usb2_pad *usb2 = to_usb2_pad(pad);
658
659 kfree(usb2);
660}
661
662static const struct tegra_xusb_pad_ops tegra124_usb2_ops = {
663 .probe = tegra124_usb2_pad_probe,
664 .remove = tegra124_usb2_pad_remove,
665};
666
667static const struct tegra_xusb_pad_soc tegra124_usb2_pad = {
668 .name = "usb2",
669 .num_lanes = ARRAY_SIZE(tegra124_usb2_lanes),
670 .lanes = tegra124_usb2_lanes,
671 .ops = &tegra124_usb2_ops,
672};
673
674static const char * const tegra124_ulpi_functions[] = {
675 "snps",
676 "xusb",
677};
678
679static const struct tegra_xusb_lane_soc tegra124_ulpi_lanes[] = {
680 TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, ulpi),
681};
682
683static struct tegra_xusb_lane *
684tegra124_ulpi_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
685 unsigned int index)
686{
687 struct tegra_xusb_ulpi_lane *ulpi;
688 int err;
689
690 ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
691 if (!ulpi)
692 return ERR_PTR(-ENOMEM);
693
694 INIT_LIST_HEAD(&ulpi->base.list);
695 ulpi->base.soc = &pad->soc->lanes[index];
696 ulpi->base.index = index;
697 ulpi->base.pad = pad;
698 ulpi->base.np = np;
699
700 err = tegra_xusb_lane_parse_dt(&ulpi->base, np);
701 if (err < 0) {
702 kfree(ulpi);
703 return ERR_PTR(err);
704 }
705
706 return &ulpi->base;
707}
708
709static void tegra124_ulpi_lane_remove(struct tegra_xusb_lane *lane)
710{
711 struct tegra_xusb_ulpi_lane *ulpi = to_ulpi_lane(lane);
712
713 kfree(ulpi);
714}
715
716static const struct tegra_xusb_lane_ops tegra124_ulpi_lane_ops = {
717 .probe = tegra124_ulpi_lane_probe,
718 .remove = tegra124_ulpi_lane_remove,
719};
720
721static int tegra124_ulpi_phy_init(struct phy *phy)
722{
723 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
724
725 return tegra124_xusb_padctl_enable(lane->pad->padctl);
726}
727
728static int tegra124_ulpi_phy_exit(struct phy *phy)
729{
730 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
731
732 return tegra124_xusb_padctl_disable(lane->pad->padctl);
733}
734
735static int tegra124_ulpi_phy_power_on(struct phy *phy)
736{
737 return 0;
738}
739
740static int tegra124_ulpi_phy_power_off(struct phy *phy)
741{
742 return 0;
743}
744
745static const struct phy_ops tegra124_ulpi_phy_ops = {
746 .init = tegra124_ulpi_phy_init,
747 .exit = tegra124_ulpi_phy_exit,
748 .power_on = tegra124_ulpi_phy_power_on,
749 .power_off = tegra124_ulpi_phy_power_off,
750 .owner = THIS_MODULE,
751};
752
753static struct tegra_xusb_pad *
754tegra124_ulpi_pad_probe(struct tegra_xusb_padctl *padctl,
755 const struct tegra_xusb_pad_soc *soc,
756 struct device_node *np)
757{
758 struct tegra_xusb_ulpi_pad *ulpi;
759 struct tegra_xusb_pad *pad;
760 int err;
761
762 ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
763 if (!ulpi)
764 return ERR_PTR(-ENOMEM);
765
766 pad = &ulpi->base;
767 pad->ops = &tegra124_ulpi_lane_ops;
768 pad->soc = soc;
769
770 err = tegra_xusb_pad_init(pad, padctl, np);
771 if (err < 0) {
772 kfree(ulpi);
773 goto out;
774 }
775
776 err = tegra_xusb_pad_register(pad, &tegra124_ulpi_phy_ops);
777 if (err < 0)
778 goto unregister;
779
780 dev_set_drvdata(&pad->dev, pad);
781
782 return pad;
783
784unregister:
785 device_unregister(&pad->dev);
786out:
787 return ERR_PTR(err);
788}
789
790static void tegra124_ulpi_pad_remove(struct tegra_xusb_pad *pad)
791{
792 struct tegra_xusb_ulpi_pad *ulpi = to_ulpi_pad(pad);
793
794 kfree(ulpi);
795}
796
797static const struct tegra_xusb_pad_ops tegra124_ulpi_ops = {
798 .probe = tegra124_ulpi_pad_probe,
799 .remove = tegra124_ulpi_pad_remove,
800};
801
802static const struct tegra_xusb_pad_soc tegra124_ulpi_pad = {
803 .name = "ulpi",
804 .num_lanes = ARRAY_SIZE(tegra124_ulpi_lanes),
805 .lanes = tegra124_ulpi_lanes,
806 .ops = &tegra124_ulpi_ops,
807};
808
809static const char * const tegra124_hsic_functions[] = {
810 "snps",
811 "xusb",
812};
813
814static const struct tegra_xusb_lane_soc tegra124_hsic_lanes[] = {
815 TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, hsic),
816 TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, hsic),
817};
818
819static struct tegra_xusb_lane *
820tegra124_hsic_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
821 unsigned int index)
822{
823 struct tegra_xusb_hsic_lane *hsic;
824 int err;
825
826 hsic = kzalloc(sizeof(*hsic), GFP_KERNEL);
827 if (!hsic)
828 return ERR_PTR(-ENOMEM);
829
830 INIT_LIST_HEAD(&hsic->base.list);
831 hsic->base.soc = &pad->soc->lanes[index];
832 hsic->base.index = index;
833 hsic->base.pad = pad;
834 hsic->base.np = np;
835
836 err = tegra_xusb_lane_parse_dt(&hsic->base, np);
837 if (err < 0) {
838 kfree(hsic);
839 return ERR_PTR(err);
840 }
841
842 return &hsic->base;
843}
844
845static void tegra124_hsic_lane_remove(struct tegra_xusb_lane *lane)
846{
847 struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane);
848
849 kfree(hsic);
850}
851
852static const struct tegra_xusb_lane_ops tegra124_hsic_lane_ops = {
853 .probe = tegra124_hsic_lane_probe,
854 .remove = tegra124_hsic_lane_remove,
855};
856
857static int tegra124_hsic_phy_init(struct phy *phy)
858{
859 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
860
861 return tegra124_xusb_padctl_enable(lane->pad->padctl);
862}
863
864static int tegra124_hsic_phy_exit(struct phy *phy)
865{
866 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
867
868 return tegra124_xusb_padctl_disable(lane->pad->padctl);
869}
870
871static int tegra124_hsic_phy_power_on(struct phy *phy)
872{
873 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
874 struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane);
875 struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad);
876 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
877 unsigned int index = lane->index;
878 u32 value;
879 int err;
880
881 err = regulator_enable(pad->supply);
882 if (err)
883 return err;
884
885 padctl_writel(padctl, hsic->strobe_trim,
886 XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL);
887
888 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
889
890 if (hsic->auto_term)
891 value |= XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
892 else
893 value &= ~XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
894
895 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
896
897 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index));
898 value &= ~((XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK <<
899 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
900 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK <<
901 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
902 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK <<
903 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
904 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK <<
905 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT));
906 value |= (hsic->tx_rtune_n <<
907 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
908 (hsic->tx_rtune_p <<
909 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
910 (hsic->tx_rslew_n <<
911 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
912 (hsic->tx_rslew_p <<
913 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT);
914 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index));
915
916 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(index));
917 value &= ~((XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK <<
918 XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) |
919 (XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK <<
920 XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT));
921 value |= (hsic->rx_strobe_trim <<
922 XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) |
923 (hsic->rx_data_trim <<
924 XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT);
925 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL2(index));
926
927 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
928 value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE |
929 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA |
930 XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
931 XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
932 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
933 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX);
934 value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
935 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
936 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
937
938 return 0;
939}
940
941static int tegra124_hsic_phy_power_off(struct phy *phy)
942{
943 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
944 struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad);
945 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
946 unsigned int index = lane->index;
947 u32 value;
948
949 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
950 value |= XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
951 XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
952 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
953 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX;
954 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
955
956 regulator_disable(pad->supply);
957
958 return 0;
959}
960
961static const struct phy_ops tegra124_hsic_phy_ops = {
962 .init = tegra124_hsic_phy_init,
963 .exit = tegra124_hsic_phy_exit,
964 .power_on = tegra124_hsic_phy_power_on,
965 .power_off = tegra124_hsic_phy_power_off,
966 .owner = THIS_MODULE,
967};
968
969static struct tegra_xusb_pad *
970tegra124_hsic_pad_probe(struct tegra_xusb_padctl *padctl,
971 const struct tegra_xusb_pad_soc *soc,
972 struct device_node *np)
973{
974 struct tegra_xusb_hsic_pad *hsic;
975 struct tegra_xusb_pad *pad;
976 int err;
977
978 hsic = kzalloc(sizeof(*hsic), GFP_KERNEL);
979 if (!hsic)
980 return ERR_PTR(-ENOMEM);
981
982 pad = &hsic->base;
983 pad->ops = &tegra124_hsic_lane_ops;
984 pad->soc = soc;
985
986 err = tegra_xusb_pad_init(pad, padctl, np);
987 if (err < 0) {
988 kfree(hsic);
989 goto out;
990 }
991
992 err = tegra_xusb_pad_register(pad, &tegra124_hsic_phy_ops);
993 if (err < 0)
994 goto unregister;
995
996 dev_set_drvdata(&pad->dev, pad);
997
998 return pad;
999
1000unregister:
1001 device_unregister(&pad->dev);
1002out:
1003 return ERR_PTR(err);
1004}
1005
1006static void tegra124_hsic_pad_remove(struct tegra_xusb_pad *pad)
1007{
1008 struct tegra_xusb_hsic_pad *hsic = to_hsic_pad(pad);
1009
1010 kfree(hsic);
1011}
1012
1013static const struct tegra_xusb_pad_ops tegra124_hsic_ops = {
1014 .probe = tegra124_hsic_pad_probe,
1015 .remove = tegra124_hsic_pad_remove,
1016};
1017
1018static const struct tegra_xusb_pad_soc tegra124_hsic_pad = {
1019 .name = "hsic",
1020 .num_lanes = ARRAY_SIZE(tegra124_hsic_lanes),
1021 .lanes = tegra124_hsic_lanes,
1022 .ops = &tegra124_hsic_ops,
1023};
1024
1025static const char * const tegra124_pcie_functions[] = {
1026 "pcie",
1027 "usb3-ss",
1028 "sata",
1029};
1030
1031static const struct tegra_xusb_lane_soc tegra124_pcie_lanes[] = {
1032 TEGRA124_LANE("pcie-0", 0x134, 16, 0x3, pcie),
1033 TEGRA124_LANE("pcie-1", 0x134, 18, 0x3, pcie),
1034 TEGRA124_LANE("pcie-2", 0x134, 20, 0x3, pcie),
1035 TEGRA124_LANE("pcie-3", 0x134, 22, 0x3, pcie),
1036 TEGRA124_LANE("pcie-4", 0x134, 24, 0x3, pcie),
1037};
1038
1039static struct tegra_xusb_lane *
1040tegra124_pcie_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
1041 unsigned int index)
1042{
1043 struct tegra_xusb_pcie_lane *pcie;
1044 int err;
1045
1046 pcie = kzalloc(sizeof(*pcie), GFP_KERNEL);
1047 if (!pcie)
1048 return ERR_PTR(-ENOMEM);
1049
1050 INIT_LIST_HEAD(&pcie->base.list);
1051 pcie->base.soc = &pad->soc->lanes[index];
1052 pcie->base.index = index;
1053 pcie->base.pad = pad;
1054 pcie->base.np = np;
1055
1056 err = tegra_xusb_lane_parse_dt(&pcie->base, np);
1057 if (err < 0) {
1058 kfree(pcie);
1059 return ERR_PTR(err);
1060 }
1061
1062 return &pcie->base;
1063}
1064
1065static void tegra124_pcie_lane_remove(struct tegra_xusb_lane *lane)
1066{
1067 struct tegra_xusb_pcie_lane *pcie = to_pcie_lane(lane);
1068
1069 kfree(pcie);
1070}
1071
1072static const struct tegra_xusb_lane_ops tegra124_pcie_lane_ops = {
1073 .probe = tegra124_pcie_lane_probe,
1074 .remove = tegra124_pcie_lane_remove,
1075};
1076
1077static int tegra124_pcie_phy_init(struct phy *phy)
1078{
1079 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1080
1081 return tegra124_xusb_padctl_enable(lane->pad->padctl);
1082}
1083
1084static int tegra124_pcie_phy_exit(struct phy *phy)
1085{
1086 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1087
1088 return tegra124_xusb_padctl_disable(lane->pad->padctl);
1089}
1090
1091static int tegra124_pcie_phy_power_on(struct phy *phy)
1092{
1093 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1094 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1095 unsigned long timeout;
1096 int err = -ETIMEDOUT;
1097 u32 value;
1098
1099 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1100 value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK;
1101 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1102
1103 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
1104 value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN |
1105 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN |
1106 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL;
1107 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
1108
1109 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1110 value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
1111 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1112
1113 timeout = jiffies + msecs_to_jiffies(50);
1114
1115 while (time_before(jiffies, timeout)) {
1116 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1117 if (value & XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET) {
1118 err = 0;
1119 break;
1120 }
1121
1122 usleep_range(100, 200);
1123 }
1124
1125 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1126 value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index);
1127 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1128
1129 return err;
1130}
1131
1132static int tegra124_pcie_phy_power_off(struct phy *phy)
1133{
1134 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1135 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1136 u32 value;
1137
1138 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1139 value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index);
1140 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1141
1142 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1143 value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
1144 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1145
1146 return 0;
1147}
1148
1149static const struct phy_ops tegra124_pcie_phy_ops = {
1150 .init = tegra124_pcie_phy_init,
1151 .exit = tegra124_pcie_phy_exit,
1152 .power_on = tegra124_pcie_phy_power_on,
1153 .power_off = tegra124_pcie_phy_power_off,
1154 .owner = THIS_MODULE,
1155};
1156
1157static struct tegra_xusb_pad *
1158tegra124_pcie_pad_probe(struct tegra_xusb_padctl *padctl,
1159 const struct tegra_xusb_pad_soc *soc,
1160 struct device_node *np)
1161{
1162 struct tegra_xusb_pcie_pad *pcie;
1163 struct tegra_xusb_pad *pad;
1164 int err;
1165
1166 pcie = kzalloc(sizeof(*pcie), GFP_KERNEL);
1167 if (!pcie)
1168 return ERR_PTR(-ENOMEM);
1169
1170 pad = &pcie->base;
1171 pad->ops = &tegra124_pcie_lane_ops;
1172 pad->soc = soc;
1173
1174 err = tegra_xusb_pad_init(pad, padctl, np);
1175 if (err < 0) {
1176 kfree(pcie);
1177 goto out;
1178 }
1179
1180 err = tegra_xusb_pad_register(pad, &tegra124_pcie_phy_ops);
1181 if (err < 0)
1182 goto unregister;
1183
1184 dev_set_drvdata(&pad->dev, pad);
1185
1186 return pad;
1187
1188unregister:
1189 device_unregister(&pad->dev);
1190out:
1191 return ERR_PTR(err);
1192}
1193
1194static void tegra124_pcie_pad_remove(struct tegra_xusb_pad *pad)
1195{
1196 struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(pad);
1197
1198 kfree(pcie);
1199}
1200
1201static const struct tegra_xusb_pad_ops tegra124_pcie_ops = {
1202 .probe = tegra124_pcie_pad_probe,
1203 .remove = tegra124_pcie_pad_remove,
1204};
1205
1206static const struct tegra_xusb_pad_soc tegra124_pcie_pad = {
1207 .name = "pcie",
1208 .num_lanes = ARRAY_SIZE(tegra124_pcie_lanes),
1209 .lanes = tegra124_pcie_lanes,
1210 .ops = &tegra124_pcie_ops,
1211};
1212
1213static const struct tegra_xusb_lane_soc tegra124_sata_lanes[] = {
1214 TEGRA124_LANE("sata-0", 0x134, 26, 0x3, pcie),
1215};
1216
1217static struct tegra_xusb_lane *
1218tegra124_sata_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
1219 unsigned int index)
1220{
1221 struct tegra_xusb_sata_lane *sata;
1222 int err;
1223
1224 sata = kzalloc(sizeof(*sata), GFP_KERNEL);
1225 if (!sata)
1226 return ERR_PTR(-ENOMEM);
1227
1228 INIT_LIST_HEAD(&sata->base.list);
1229 sata->base.soc = &pad->soc->lanes[index];
1230 sata->base.index = index;
1231 sata->base.pad = pad;
1232 sata->base.np = np;
1233
1234 err = tegra_xusb_lane_parse_dt(&sata->base, np);
1235 if (err < 0) {
1236 kfree(sata);
1237 return ERR_PTR(err);
1238 }
1239
1240 return &sata->base;
1241}
1242
1243static void tegra124_sata_lane_remove(struct tegra_xusb_lane *lane)
1244{
1245 struct tegra_xusb_sata_lane *sata = to_sata_lane(lane);
1246
1247 kfree(sata);
1248}
1249
1250static const struct tegra_xusb_lane_ops tegra124_sata_lane_ops = {
1251 .probe = tegra124_sata_lane_probe,
1252 .remove = tegra124_sata_lane_remove,
1253};
1254
1255static int tegra124_sata_phy_init(struct phy *phy)
1256{
1257 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1258
1259 return tegra124_xusb_padctl_enable(lane->pad->padctl);
1260}
1261
1262static int tegra124_sata_phy_exit(struct phy *phy)
1263{
1264 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1265
1266 return tegra124_xusb_padctl_disable(lane->pad->padctl);
1267}
1268
1269static int tegra124_sata_phy_power_on(struct phy *phy)
1270{
1271 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1272 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1273 unsigned long timeout;
1274 int err = -ETIMEDOUT;
1275 u32 value;
1276
1277 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1278 value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
1279 value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
1280 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1281
1282 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1283 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
1284 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
1285 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1286
1287 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1288 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
1289 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1290
1291 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1292 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
1293 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1294
1295 timeout = jiffies + msecs_to_jiffies(50);
1296
1297 while (time_before(jiffies, timeout)) {
1298 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1299 if (value & XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET) {
1300 err = 0;
1301 break;
1302 }
1303
1304 usleep_range(100, 200);
1305 }
1306
1307 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1308 value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index);
1309 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1310
1311 return err;
1312}
1313
1314static int tegra124_sata_phy_power_off(struct phy *phy)
1315{
1316 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1317 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1318 u32 value;
1319
1320 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1321 value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index);
1322 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1323
1324 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1325 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
1326 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1327
1328 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1329 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
1330 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1331
1332 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1333 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
1334 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
1335 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1336
1337 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1338 value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
1339 value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
1340 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1341
1342 return 0;
1343}
1344
1345static const struct phy_ops tegra124_sata_phy_ops = {
1346 .init = tegra124_sata_phy_init,
1347 .exit = tegra124_sata_phy_exit,
1348 .power_on = tegra124_sata_phy_power_on,
1349 .power_off = tegra124_sata_phy_power_off,
1350 .owner = THIS_MODULE,
1351};
1352
1353static struct tegra_xusb_pad *
1354tegra124_sata_pad_probe(struct tegra_xusb_padctl *padctl,
1355 const struct tegra_xusb_pad_soc *soc,
1356 struct device_node *np)
1357{
1358 struct tegra_xusb_sata_pad *sata;
1359 struct tegra_xusb_pad *pad;
1360 int err;
1361
1362 sata = kzalloc(sizeof(*sata), GFP_KERNEL);
1363 if (!sata)
1364 return ERR_PTR(-ENOMEM);
1365
1366 pad = &sata->base;
1367 pad->ops = &tegra124_sata_lane_ops;
1368 pad->soc = soc;
1369
1370 err = tegra_xusb_pad_init(pad, padctl, np);
1371 if (err < 0) {
1372 kfree(sata);
1373 goto out;
1374 }
1375
1376 err = tegra_xusb_pad_register(pad, &tegra124_sata_phy_ops);
1377 if (err < 0)
1378 goto unregister;
1379
1380 dev_set_drvdata(&pad->dev, pad);
1381
1382 return pad;
1383
1384unregister:
1385 device_unregister(&pad->dev);
1386out:
1387 return ERR_PTR(err);
1388}
1389
1390static void tegra124_sata_pad_remove(struct tegra_xusb_pad *pad)
1391{
1392 struct tegra_xusb_sata_pad *sata = to_sata_pad(pad);
1393
1394 kfree(sata);
1395}
1396
1397static const struct tegra_xusb_pad_ops tegra124_sata_ops = {
1398 .probe = tegra124_sata_pad_probe,
1399 .remove = tegra124_sata_pad_remove,
1400};
1401
1402static const struct tegra_xusb_pad_soc tegra124_sata_pad = {
1403 .name = "sata",
1404 .num_lanes = ARRAY_SIZE(tegra124_sata_lanes),
1405 .lanes = tegra124_sata_lanes,
1406 .ops = &tegra124_sata_ops,
1407};
1408
1409static const struct tegra_xusb_pad_soc *tegra124_pads[] = {
1410 &tegra124_usb2_pad,
1411 &tegra124_ulpi_pad,
1412 &tegra124_hsic_pad,
1413 &tegra124_pcie_pad,
1414 &tegra124_sata_pad,
1415};
1416
1417static int tegra124_usb2_port_enable(struct tegra_xusb_port *port)
1418{
1419 return 0;
1420}
1421
1422static void tegra124_usb2_port_disable(struct tegra_xusb_port *port)
1423{
1424}
1425
1426static struct tegra_xusb_lane *
1427tegra124_usb2_port_map(struct tegra_xusb_port *port)
1428{
1429 return tegra_xusb_find_lane(port->padctl, "usb2", port->index);
1430}
1431
1432static const struct tegra_xusb_port_ops tegra124_usb2_port_ops = {
1433 .enable = tegra124_usb2_port_enable,
1434 .disable = tegra124_usb2_port_disable,
1435 .map = tegra124_usb2_port_map,
1436};
1437
1438static int tegra124_ulpi_port_enable(struct tegra_xusb_port *port)
1439{
1440 return 0;
1441}
1442
1443static void tegra124_ulpi_port_disable(struct tegra_xusb_port *port)
1444{
1445}
1446
1447static struct tegra_xusb_lane *
1448tegra124_ulpi_port_map(struct tegra_xusb_port *port)
1449{
1450 return tegra_xusb_find_lane(port->padctl, "ulpi", port->index);
1451}
1452
1453static const struct tegra_xusb_port_ops tegra124_ulpi_port_ops = {
1454 .enable = tegra124_ulpi_port_enable,
1455 .disable = tegra124_ulpi_port_disable,
1456 .map = tegra124_ulpi_port_map,
1457};
1458
1459static int tegra124_hsic_port_enable(struct tegra_xusb_port *port)
1460{
1461 return 0;
1462}
1463
1464static void tegra124_hsic_port_disable(struct tegra_xusb_port *port)
1465{
1466}
1467
1468static struct tegra_xusb_lane *
1469tegra124_hsic_port_map(struct tegra_xusb_port *port)
1470{
1471 return tegra_xusb_find_lane(port->padctl, "hsic", port->index);
1472}
1473
1474static const struct tegra_xusb_port_ops tegra124_hsic_port_ops = {
1475 .enable = tegra124_hsic_port_enable,
1476 .disable = tegra124_hsic_port_disable,
1477 .map = tegra124_hsic_port_map,
1478};
1479
1480static int tegra124_usb3_port_enable(struct tegra_xusb_port *port)
1481{
1482 struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port);
1483 struct tegra_xusb_padctl *padctl = port->padctl;
1484 struct tegra_xusb_lane *lane = usb3->base.lane;
1485 unsigned int index = port->index, offset;
1486 u32 value;
1487
1488 value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
1489
1490 if (!usb3->internal)
1491 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index);
1492 else
1493 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index);
1494
1495 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index);
1496 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, usb3->port);
1497 padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
1498
1499 /*
1500 * TODO: move this code into the PCIe/SATA PHY ->power_on() callbacks
1501 * and conditionalize based on mux function? This seems to work, but
1502 * might not be the exact proper sequence.
1503 */
1504 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
1505 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK <<
1506 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
1507 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK <<
1508 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT) |
1509 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK <<
1510 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT));
1511 value |= (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_VAL <<
1512 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
1513 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_VAL <<
1514 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT) |
1515 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_VAL <<
1516 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT);
1517
1518 if (usb3->context_saved) {
1519 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
1520 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
1521 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
1522 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
1523 value |= (usb3->ctle_g <<
1524 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
1525 (usb3->ctle_z <<
1526 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
1527 }
1528
1529 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
1530
1531 value = XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_VAL;
1532
1533 if (usb3->context_saved) {
1534 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
1535 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
1536 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
1537 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
1538 value |= (usb3->tap1 <<
1539 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
1540 (usb3->amp <<
1541 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
1542 }
1543
1544 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
1545
1546 if (lane->pad == padctl->pcie)
1547 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(lane->index);
1548 else
1549 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2;
1550
1551 value = padctl_readl(padctl, offset);
1552 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK <<
1553 XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT);
1554 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_VAL <<
1555 XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT;
1556 padctl_writel(padctl, value, offset);
1557
1558 if (lane->pad == padctl->pcie)
1559 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(lane->index);
1560 else
1561 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5;
1562
1563 value = padctl_readl(padctl, offset);
1564 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN;
1565 padctl_writel(padctl, value, offset);
1566
1567 /* Enable SATA PHY when SATA lane is used */
1568 if (lane->pad == padctl->sata) {
1569 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1570 value &= ~(XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_MASK <<
1571 XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT);
1572 value |= 0x2 <<
1573 XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT;
1574 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1575
1576 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL2);
1577 value &= ~((XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_MASK <<
1578 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT) |
1579 (XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_MASK <<
1580 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT) |
1581 (XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_MASK <<
1582 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT) |
1583 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TCLKOUT_EN);
1584 value |= (0x7 <<
1585 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT) |
1586 (0x8 <<
1587 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT) |
1588 (0x8 <<
1589 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT) |
1590 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TXCLKREF_SEL;
1591 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL2);
1592
1593 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL3);
1594 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL3_RCAL_BYPASS;
1595 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL3);
1596 }
1597
1598 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1599 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(index);
1600 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1601
1602 usleep_range(100, 200);
1603
1604 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1605 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(index);
1606 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1607
1608 usleep_range(100, 200);
1609
1610 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1611 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(index);
1612 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1613
1614 return 0;
1615}
1616
1617static void tegra124_usb3_port_disable(struct tegra_xusb_port *port)
1618{
1619 struct tegra_xusb_padctl *padctl = port->padctl;
1620 u32 value;
1621
1622 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1623 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port->index);
1624 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1625
1626 usleep_range(100, 200);
1627
1628 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1629 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(port->index);
1630 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1631
1632 usleep_range(250, 350);
1633
1634 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1635 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port->index);
1636 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1637
1638 value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
1639 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(port->index);
1640 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(port->index, 0x7);
1641 padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
1642}
1643
1644static const struct tegra_xusb_lane_map tegra124_usb3_map[] = {
1645 { 0, "pcie", 0 },
1646 { 1, "pcie", 1 },
1647 { 1, "sata", 0 },
1648 { 0, NULL, 0 },
1649};
1650
1651static struct tegra_xusb_lane *
1652tegra124_usb3_port_map(struct tegra_xusb_port *port)
1653{
1654 return tegra_xusb_port_find_lane(port, tegra124_usb3_map, "usb3-ss");
1655}
1656
1657static const struct tegra_xusb_port_ops tegra124_usb3_port_ops = {
1658 .enable = tegra124_usb3_port_enable,
1659 .disable = tegra124_usb3_port_disable,
1660 .map = tegra124_usb3_port_map,
1661};
1662
1663static int
1664tegra124_xusb_read_fuse_calibration(struct tegra124_xusb_fuse_calibration *fuse)
1665{
1666 unsigned int i;
1667 int err;
1668 u32 value;
1669
1670 err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value);
1671 if (err < 0)
1672 return err;
1673
1674 for (i = 0; i < ARRAY_SIZE(fuse->hs_curr_level); i++) {
1675 fuse->hs_curr_level[i] =
1676 (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) &
1677 FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK;
1678 }
1679 fuse->hs_iref_cap =
1680 (value >> FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT) &
1681 FUSE_SKU_CALIB_HS_IREF_CAP_MASK;
1682 fuse->hs_term_range_adj =
1683 (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) &
1684 FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK;
1685 fuse->hs_squelch_level =
1686 (value >> FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT) &
1687 FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK;
1688
1689 return 0;
1690}
1691
1692static struct tegra_xusb_padctl *
1693tegra124_xusb_padctl_probe(struct device *dev,
1694 const struct tegra_xusb_padctl_soc *soc)
1695{
1696 struct tegra124_xusb_padctl *padctl;
1697 int err;
1698
1699 padctl = devm_kzalloc(dev, sizeof(*padctl), GFP_KERNEL);
1700 if (!padctl)
1701 return ERR_PTR(-ENOMEM);
1702
1703 padctl->base.dev = dev;
1704 padctl->base.soc = soc;
1705
1706 err = tegra124_xusb_read_fuse_calibration(&padctl->fuse);
1707 if (err < 0)
1708 return ERR_PTR(err);
1709
1710 return &padctl->base;
1711}
1712
1713static void tegra124_xusb_padctl_remove(struct tegra_xusb_padctl *padctl)
1714{
1715}
1716
1717static const struct tegra_xusb_padctl_ops tegra124_xusb_padctl_ops = {
1718 .probe = tegra124_xusb_padctl_probe,
1719 .remove = tegra124_xusb_padctl_remove,
1720 .usb3_save_context = tegra124_usb3_save_context,
1721 .hsic_set_idle = tegra124_hsic_set_idle,
1722};
1723
1724const struct tegra_xusb_padctl_soc tegra124_xusb_padctl_soc = {
1725 .num_pads = ARRAY_SIZE(tegra124_pads),
1726 .pads = tegra124_pads,
1727 .ports = {
1728 .usb2 = {
1729 .ops = &tegra124_usb2_port_ops,
1730 .count = 3,
1731 },
1732 .ulpi = {
1733 .ops = &tegra124_ulpi_port_ops,
1734 .count = 1,
1735 },
1736 .hsic = {
1737 .ops = &tegra124_hsic_port_ops,
1738 .count = 2,
1739 },
1740 .usb3 = {
1741 .ops = &tegra124_usb3_port_ops,
1742 .count = 2,
1743 },
1744 },
1745 .ops = &tegra124_xusb_padctl_ops,
1746};
1747EXPORT_SYMBOL_GPL(tegra124_xusb_padctl_soc);
1748
1749MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
1750MODULE_DESCRIPTION("NVIDIA Tegra 124 XUSB Pad Controller driver");
1751MODULE_LICENSE("GPL v2");